科研之友
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摘要
Carbon-coated natural graphite has been prepared by mixing graphite particles with benzene-naphthalene copolymer and thermaly treating the mixture under a nitrogen gas flow. The coated natural graphite showed about 10% higher reversible capacity and about 7% lower irreversible capacity as an anode material for lithium ion battery with pristine graphite. The cycling behavior of graphite was also improved after being coated. The X-ray diffraction (XRD) results showed that the rhombohedral phase fraction of natural graphite increased after being coated.
- 出版日期2002-2
- 单位北京大学
